Flat boxes ideal for posting products up to 50 mm thick

The flat and sturdy alternative to mailing bags and book wraps these flat postal boxes can be used for posting, storage or presentation. They are easy to open and cleverly constructed with a cut away hole to aid opening. Easy to assemble flat postal boxes with no need for glue or tape. Secure with packaging tape or strapping for extra security.

The integral lid and double reinforced sides provide extra protection for your flat postal items. Manufactured from high quality single wall corrugated board with a Kraft finish. Also available in white. Delivered flat packed.

Order now online or call us on 0800 542 44 28 for expert packaging and wrapping advice.

Sold in packs of 50, priced per box.

Quantity Available in convenient packs of 50 boxes. Ordering in bulk? See our discounts for 100 or more boxes.

Size and shape options Our flat brown postal box range begins at 215 mm by 155 mm for smaller items, and goes up to 650 mm by 450 mm. All boxes have a height of 50 mm (all dimensions internal).

Weights and limits These boxes benefit from double reinforced sides.

Materials Each box is made from puncture-resistant, single wall corrugated cardboard finished with durable Kraft paper to provide extra strength and protection.

Environmental information Rajapack cardboard boxes are 100% recyclable and corrugated cardboard has the highest recycling rates of any packaging in the UK. On average, 76% of our boxes are made from recycled fibres and the ‘recycling loop’ is so efficient that used boxes can be recycled, remade and reused in just two weeks.